KARACHI: The Pakistan Stock Exchange (PSX) witnessed a negative trend on the second day of the business week. The market closed with 188 points lower at 46,729. On the second day of the trading week, the Pakistan Stock Exchange remained negative. The 100 Index closed 188 points lower at 46,729. Shares of a total of 380 companies traded today. Shares of 263 companies declined while shares of 103 rose